PL398831A1 - The method of forming balls is a semi-free forging method - Google Patents

The method of forming balls is a semi-free forging method

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Publication number
PL398831A1
PL398831A1 PL398831A PL39883112A PL398831A1 PL 398831 A1 PL398831 A1 PL 398831A1 PL 398831 A PL398831 A PL 398831A PL 39883112 A PL39883112 A PL 39883112A PL 398831 A1 PL398831 A1 PL 398831A1
Authority
PL
Poland
Prior art keywords
conical
semi
blank
spherical
shaped
Prior art date
Application number
PL398831A
Other languages
Polish (pl)
Other versions
PL221634B1 (en
Inventor
Zbigniew Pater
Janusz Tomczak
Original Assignee
Politechnika Lubelska
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Politechnika Lubelska filed Critical Politechnika Lubelska
Priority to PL398831A priority Critical patent/PL221634B1/en
Publication of PL398831A1 publication Critical patent/PL398831A1/en
Publication of PL221634B1 publication Critical patent/PL221634B1/en

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Abstract

Sposób ksztaltowania kul metoda kucia pólswobodnego charakteryzuje sie tym, ze pólfabrykat (3) w ksztalcie odcinka preta o srednicy d0 mniejszej od srednicy D ksztaltowanej kuli dlugosci (L) wiekszej od srednicy D ksztaltowanej kuli, umieszcza sie na podtrzymce (2) sprezystej pomiedzy dwoma matrycami (1a) i (1b), które na powierzchniach czolowych, polozonych naprzeciwko siebie maja wykonane ksztaltowe wykroje (5a) i (5b) sferyczno - stozkowe, przy czym konce pólfabrykatu (3) maja ksztalt stozkowy o jednakowych katach ? rozwarcia stozków, nastepnie uruchamia sie ruch postepowy dwóch matryc (1a) i (1b), które przemieszcza sie w kierunku pólfabrykatu (3) ze stala predkoscia (V), w wyniku czego specza sie pólfabrykat (3) w ksztaltowych wykrojach (5a) i (5b) sferyczno - stozkowych i ksztaltuje sie kule, przy czym powierzchnie stozkowe pólfabrykatu (3) i jego powierzchnie walcowe bezposrednio przylegajace do powierzchni stozkowych ksztaltuje sie w wykrojach (5a) i (5b) sferyczno - stozkowych, zas srodkowa czesc pólfabrykatu (3) ksztaltuje sie swobodnie. Nastepnie uruchamia sie ruch postepowy jednej z matryc (1a) lub (1b), zas druga matryca (1a) lub (1b) pozostaje nieruchoma i ksztaltuje sie kule.The method of forming the balls by the semi-free forging method is characterized by the fact that the blank (3) in the shape of a rod section with a diameter d0 smaller than the diameter D of the shaped sphere length (L) larger than the diameter D of the shaped sphere is placed on a support (2) elastic between two dies (1a) and (1b), which have spherical-conical shapes (5a) and (5b) spherical-conical cut on the faces facing each other, with the ends of the blank (3) having a conical shape with the same angles? opening the cones, then the progress of two matrices (1a) and (1b) is started, which moves towards the blank (3) with constant speed (V), as a result of which the blank (3) in shape patterns (5a) and (5b) spherical-conical and spheres are formed, with the conical surfaces of the semi-finished product (3) and its cylindrical surfaces directly adjacent to the conical surfaces shaped in the (5a) and (5b) spherical-conical cut-outs, and the middle part of the semi-finished product (3) shapes freely. Then the progress of one of the matrices (1a) or (1b) is started, while the other matrix (1a) or (1b) remains stationary and the balls are shaped.

PL398831A 2012-04-16 2012-04-16 Method for shaping bullets by forging a delayed blowback PL221634B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL398831A PL221634B1 (en) 2012-04-16 2012-04-16 Method for shaping bullets by forging a delayed blowback

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PL398831A PL221634B1 (en) 2012-04-16 2012-04-16 Method for shaping bullets by forging a delayed blowback

Publications (2)

Publication Number Publication Date
PL398831A1 true PL398831A1 (en) 2013-10-28
PL221634B1 PL221634B1 (en) 2016-05-31

Family

ID=49449225

Family Applications (1)

Application Number Title Priority Date Filing Date
PL398831A PL221634B1 (en) 2012-04-16 2012-04-16 Method for shaping bullets by forging a delayed blowback

Country Status (1)

Country Link
PL (1) PL221634B1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL240720B1 (en) * 2017-11-30 2022-05-23 Lubelska Polt The way of shaping the spheres

Also Published As

Publication number Publication date
PL221634B1 (en) 2016-05-31

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